Home / 1,433,609.20-1,978,365.70-789,015.56

Finding the Fourth Proportional to 1,433,609.20, 1,978,365.70 and 789,015.56

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Solution

The fourth proportional to 1,433,609.20, 1,978,365.70 and 789,015.56 is: 1,088,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,609.20 : 1,978,365.70 = 789,015.56 : x
  2. Step 2: Convert to fraction form
    1,433,609.20/1,978,365.70 = 789,015.56/x
  3. Step 3: Cross multiply
    1,433,609.20x = 1,978,365.70 × 789,015.56
  4. Step 4: Simplify right side
    1,433,609.20x = 1,560,961,320,670.29
  5. Step 5: Solve for x
    x = 1,560,961,320,670.29/1,433,609.20
  6. Step 6: Final answer
    x = 1,088,833.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.